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Coordination of stress signals by the lysine methyltransferase SMYD2 promotes pancreatic cancer

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Reynoird, Nicolas | Mazur, Pawel | Stellfeld, Timo | Flores, Natasha | Lofgren, Shane | Carlson, Scott | Brambilla, Elisabeth | Hainaut, Pierre | Kaznowska, Ewa | Arrowsmith, Cheryl | Khatri, Purvesh | Stresemann, Carlo | Gozani, Or | Sage, Julien

Edité par CCSD ; Cold Spring Harbor Laboratory Press -

International audience. Pancreatic ductal adenocarcinoma (PDAC) is a lethal form of cancer with few therapeutic options. We found that levels of the lysine methyltransferase SMYD2 (SET and MYND domain 2) are elevated in PDAC and that genetic and pharmacological inhibition of SMYD2 restricts PDAC growth. We further identified the stress response kinase MAPKAPK3 (MK3) as a new physiologic substrate of SMYD2 in PDAC cells. Inhibition of MAPKAPK3 impedes PDAC growth, identifying a potential new kinase target in PDAC. Finally, we show that inhibition of SMYD2 cooperates with standard chemotherapy to treat PDAC cells and tumors. These findings uncover a pivotal role for SMYD2 in promoting pancreatic cancer.

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